All categories

1 year ago

In Class 1, what is the median score? A) 70 B) 70.5 C) 71.5 D) 72

Mathematics

2 answers:

Korolek [52]1 year ago

5 0

Answer:

70.5

Step-by-step explanation:

evablogger [386]1 year ago

3 0

Answer:

B) 70.5

Step-by-step explanation:

Median = middle value when the values are placed in order.

If there are two middle values, the median is the mean of those two values.

Class 1

45 46 51 52 53 53 61 63 64 65 66 68 70 70 71 73 76 77 79 81 82 83 84 87 90 92 93 95

There are 28 values in Class 1.

Therefore, there are two middle values: 14th and 15th values

14th value = 70

15th value = 71

$\implies \textsf{Median}=\dfrac{70+71}{2}=70.5$

You might be interested in

What is the cost of the following?

Savatey [412]

$1.\\
6\ cans\\
3\ cans\ cost\ 1\$\\
1\ can\ cost\ \frac{1}{3}\$\\
6*\frac{1}{3}\$=\frac{6}{3}\$=2\$\\\\ \textbf{6\ cans\ cost\ 2\$}\\\\2.\\ 3\ boxes\ of\ cereal\\1\ box\ costs\ 0,99\$\\
3*0,99\$=2,97\$\\\\
\textbf{3\ boxes\ of\ cereal\ cost\ 2,97\$.}\\\\
3.\\
1\ loaf\ of\ bread\ cost\ 0,45\$\\
1*0,45=0,45\$\\\\
\textbf{One\ loaf\ of\ bread\ costs\ 0,45\$}\\\\
4.\\
6\ lbs\\
2\ lbs\ cost\ 0,8\$\\
1\ lbs\ costs\ 0,4\$\\
6*0,4\$=2,4\$\\\\
\textbf{6\ lbs\ of\ aplles\ cost\ 2,4\$}$ $5.\\
1\ box\ of\ jello\\
2\ boxes\ of\ jello\ cost\ 0,54\$\\
1\ box\ costs\ \frac{0,54\$}{2}=0,27\$\\\\
\textbf{1\ box\ of\ jello\ costs\ 0,27\$.}$

5 0

3 years ago

A frustum is formed when a plane parallel to a cone’s base cuts off the upper portion as shown. Which expression represents the

Bezzdna [24]

Think of the two pieces together as a single cone of height 19, and its volume.
Then think of only the upper piece as a cone, and find its volume.
The volume of the frustum is the total volume minus the volume of the upper piece.

The volume of a cone is:

$V = \dfrac{1}{3} \pi r^2 h$

Total volume:

$V_t = \dfrac{1}{3} \times \pi \times 7.5^2 \times 19$

Volume of upper cone:

$V_u = \dfrac{1}{3} \times \pi \times 3.5^2 \times 8$

Volume of frustum:

$V_f = \dfrac{1}{3}\pi(7.5^2)(19) - \dfrac{1}{3}\pi(3.5^2)(8)$

3 0

3 years ago

Read 2 more answers

What are the zeros of the polynomial function f(x)=x(x-4)(x+9)? HELP NEEDED!!!!

Kipish [7]

Answer: 0, 4, -9

Set the equation equal to zero.

x(x - 4)(x + 9) = 0

Solve for x by setting each factor equal to zero.

The factors in the equation are x, (x - 4), and (x + 9).

x = 0

(x - 4) = 0

x = 4

(x + 9) = 0

x = -9

The zeros of the function are 0, 4, and -9.

7 0

2 years ago

2 +

Paraphin [41]

Answer:

go study yourself

Step-by-step explanation:

4 0

3 years ago

Work out 5 x 5/6. First correct answer will be marked as brainliest. Thanks!

Gennadij [26K]

Answer:

4+1/6

Step-by-step explanation:

5* 5/6 =25/6 = 4 1/6

8 0

2 years ago